Please use this identifier to cite or link to this item: https://doi.org/10.1081/DRT-120021876
Title: The effect of moisture content on the conversion of ergosterol to vitamin D in shiitake mushrooms
Authors: Perera, C.O. 
Jasinghe, V.J.
Ng, F.L.
Mujumdar, A.S. 
Keywords: Conversion
Distribution
Drying
Optimum moisture content
Issue Date: Jul-2003
Citation: Perera, C.O., Jasinghe, V.J., Ng, F.L., Mujumdar, A.S. (2003-07). The effect of moisture content on the conversion of ergosterol to vitamin D in shiitake mushrooms. Drying Technology 21 (6) : 1091-1099. ScholarBank@NUS Repository. https://doi.org/10.1081/DRT-120021876
Abstract: The distribution of ergosterol in different parts of shiitake mushrooms was studied in order to optimize the conversion of ergosterol to vitamin D2 during drying. The effect of moisture on the conversion of ergosterol to vitamin D2 was also investigated by adjusting the moisture content of fresh mushrooms to different levels in a large vacuum desiccator and subjecting them to UV irradiation at 290-320nm wavelength, for 2h. The moisture, ergosterol and vitamin D2 contents were determined using standard procedures. It was found that the ergosterol content on a dry matter basis of fresh shiitake mushroom was highest in the gills (10.6 ± 0.99mg/g DM), followed by the cap or pileus (5.34 ± 0.64mg/g DM) and was least in the stalk or stipe (2.97 ± 0.56). The moisture content had a marked influence on the conversion of ergosterol to vitamin D2 the best conversion taking place at a moisture content of about 70% on a wet basis.
Source Title: Drying Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/85757
ISSN: 07373937
DOI: 10.1081/DRT-120021876
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

23
checked on Dec 12, 2018

WEB OF SCIENCETM
Citations

9
checked on Dec 12, 2018

Page view(s)

50
checked on Dec 15, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.